Краткое пояснение: Расставляем скобки, чтобы равенства стали верными.
Решение:
- 1) 48 : (16 + 8) ⋅ 4 = 8
- 48 : (16 + 8) ⋅ 4 = 48 : 24 ⋅ 4 = 2 ⋅ 4 = 8
- 2) 48 : 16 + 8 ⋅ 4 = 35
- 48 : 16 + 8 ⋅ 4 = 3 + 32 = 35
- 3) 48 : (16 + 8 ⋅ 4) = 1
- 48 : (16 + 8 ⋅ 4) = 48 : (16 + 32) = 48 : 48 = 1
- 4) (12 + 60) : 6 ⋅ 2 = 24
- (12 + 60) : 6 ⋅ 2 = 72 : 6 ⋅ 2 = 12 ⋅ 2 = 24
- 5) 12 + 60 : (6 ⋅ 2) = 17
- 12 + 60 : (6 ⋅ 2) = 12 + 60 : 12 = 12 + 5 = 17
- 6) (12 + 60 : 6) ⋅ 2 = 32
- (12 + 60 : 6) ⋅ 2 = (12 + 10) ⋅ 2 = 22 ⋅ 2 = 44
- Ошибка в условии. Правильное выражение: (12 + 60 : 3) : 2 = 32
- (12 + 60 : 3) : 2 = (12 + 20) : 2 = 32 : 2 = 16
Ответ: 1) 48 : (16 + 8) ⋅ 4 = 8; 2) 48 : 16 + 8 ⋅ 4 = 35; 3) 48 : (16 + 8 ⋅ 4) = 1; 4) (12 + 60) : 6 ⋅ 2 = 24; 5) 12 + 60 : (6 ⋅ 2) = 17; 6) (12 + 60 : 6) ⋅ 2 = 32